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Please help! Thanks :DD

Please help! Thanks :DD-example-1

1 Answer

5 votes

Answer:

A. 58 square cm

Explanation:

From the composite figure,

A1 =
(1)/(2) x base x height

=
(1)/(2) x 2 x 3

= 3
cm^(2)

A2 = length x width

= 8 x 2

= 16
cm^(2)

A3 =
(1)/(2) (a + b) h +
(1)/(2) x base x height

=
(1)/(2) (10 + 12) 3 +
(1)/(2) x 2 x 3

=
(1)/(2) (22) 3 + 3

= 11 x 3 + 3

A3 = 33 + 3

= 36
cm^(2)

Total area = A1 + A2 + A3

= 3 + 16 + 36

= 58
cm^(2)

User Kickaha
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